Empress of Beasts. Beasts Among Us, #4

The apocalypse has come and gone but pack is forever. The world is brand new after the merge, and not just the landscape. Magic is now a part of everyday life and Gretchen is not only an alpha, but Empress of the entire North East. Anti-fae extremists are bent on eliminating Gretchen's people, even the humans among them. They strike fast and brutal, leaving devastation in their wake. Even worse, the wolves are finding it impossible to track them to their home base. A dark presence haunts Gretchen day and night along with the debilitating cacophony of voices inside her head.
If she loses control of her magic, it could mean more than just the end of her life, but of every werewolf under her rule, maybe even her entire territory.